Ōoka Echizen was created on 1970-03-16.
Echizen Railway was created on 2002-09-17.
Oka Raju Oka Rani was created on 2003-06-19.
FC Oka was created in 1923.
Oka Station was created in 1968.
Echizen-Kaga Kaigan Quasi-National Park was created on 1968-05-01.
Oka Oori Katha was created in 1977.
Akuro no Oka was created on 1999-01-20.
Anaganaga Oka Roju was created in 1997.
Oka Oorilo was created on 2005-07-01.
Nie Dla Oka was created on 2007-11-30.
Samsaram Oka Chadarangam was created on 1987-01-01.
Anukokunda Oka Roju was created on 2005-06-30.